Which item is not a component of the imaging chain?

• A. X-ray source
• B. X-ray acquisition device & software
• C. Display device
• D. Patient chair

Answer: (D)

The imaging chain consists of the elements that generate, acquire, process, and display the image. The X-ray source creates the beam that forms the image, the acquisition device and its software convert that beam into digital data, and the display device is where you view the result. A patient chair is not part of this flow; it serves for positioning and comfort but does not participate in image formation, data processing, or presentation. So while proper positioning it enables can affect image quality, the chair itself isn’t a component of the imaging chain.